MAN Truck Fault codes automotive computer (FFR)

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MAN TRUCK FAULT CODES AUTOMOTIVE COMPUTER (FFR)
MAN TRUCK FAULT CODES AUTOMOTIVE COMPUTER (FFR)
MAN TRUCK FAULT CODES AUTOMOTIVE COMPUTE
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Code (SPN) Description Reason, verification and system response.

 

32 Status divider. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. Unable to determine the status of the divider for the set measurement time. Check circuit contacts in the connectors and the accuracy of the frequency of rotation of the sensor readings at the inlet of the gearbox (V368). Check the accuracy of the rotation signal using a PC. Check the resistance: from FFR between terminals X3 / 12 (+) and X1 / 3 (-), the resistance should be approximately 1.78 ohms, from the resistance of the sensor should correspond to approximately 1.05 ohms. Check the voltage between FFR X3 / 12 (+) and X1 / 3 unit (-), the voltage should be approximately 1 volt at idle. Note: See the SPN 770 and 771..

Rotation speed 161 at the input to the gearbox. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. Incorrect signal from the speed sensor on the gearbox input (V368) is set to the status of "signal not available", it is impossible to define the state of the divider, the function of "Comfort-Shift" is locked. Check circuit contacts in the connectors and the accuracy of the frequency of rotation of the sensor readings at the inlet of the gearbox (V368). Check the accuracy of the rotation signal using a PC. Check the resistance: from FFR between terminals X3 / 12 (+) and X1 / 3 (-), the resistance should be approximately 1.78 ohms, from the resistance of the sensor should correspond to approximately 1.05 ohms. Check the voltage between FFR X3 / 12 (+) and X1 / 3 unit (-), the voltage should be approximately 1 volt at idle.

168 Supply voltage batteries. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. The operating voltage greater than 32 V. Check the accuracy of the signal using a PC, check the wiring, contacts in the connectors, the generator and batteries. Check the voltage at the terminals block FFR X1 / 2, X1 / 1 (+), X1 / 3 (-) voltage must be between 20 and 28 V. If the voltage measured on the FFR block connectors are normal, replace the unit FFR.

168 Supply voltage batteries. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. Operating voltage is less than 16 V. Check the accuracy of the signal using a PC, check the wiring, contacts in the connectors, the generator and batteries. Check the voltage at the terminals block FFR X1 / 2, X1 / 1 (+), X1 / 3 (-) voltage must be between 20 and 28 V. If the voltage measured on the FFR block connectors are normal, replace the unit FFR.

572 Auxiliary switching device retarder (retarder). Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Faulty wiring transmission line from the touch-control switch retarder. Switch ceases to function. Included brake retarder is deactivated by pressing the accelerator pedal. Check the accuracy of the signal using a PC, check the wiring, contacts in the connectors, sensor switch retarder. Check the resistance of the data line of the touch switch, a contact unit FFR X2 / 10 (+) and X1 / 3 (-) on the side of the unit FFRpriblizitelno 1.5 MW, at the side of the car about 1.6 MW. Check the resistance of the wire touch switch retarder synchronization between contacts FFR block X2 / 6 (+) and 1/3 X (-) on the side of FFR unit about 1,7MOm on the car side of about 1.2 MW. Check the power transmission line from the touch switch, a contact FFR X2 / 10 (+) and X1 / 3 block (-) jumper (test block) closed: about 14.2 V., jumper (test block) is open: on the side FFR unit of about 23.5 V at the side of the car about 14 V. Check the voltage wires sync touch switch retarder, FFR between terminals X2 / 6 (+) 1/3 block, and X (-) jumper (test block) closed: approximately 12 3 VA, jumper (test block) is open: on the side of FFR unit approximately 13.5 V., car side of approximately 22.5 V.

697 Accelerator pedal, signalPWM1 (pulse width modulation). Priority 2: The fault, which requires removal of the service center. STOP warning light is lit in red. Missing or invalid signal PWM1 accelerator pedal (A410). For identification of the accelerator pedal position signal PWM2 used. Engine speed and torque limited (1800 rev / min and a 80% limit). Check the accuracy of signal PWM1 using a PC, check the wiring, contacts in the connectors. Perform measurement using portable ostsillografaFluke ScopeMeter 123 or similar device (frequency 200 Hz). Check the voltage at FFR unit between terminals X2 / 11 (+) and X1 / 3 (-) jumper (test block) is closed, Low signal (accelerator pedal fully depressed) about 8 V., HIGH signal: about 20 in .; Jumper (test block) is open: on the side of blokaFFR approximately 25.4 V., by car about 0.5 V. If the fault is not found, try to recalibrate the accelerator pedal. If the voltage drop when the ignition is switched on PWM1 (A410 / pin5) and power on the PWM2 (A410 / pin6) is greater than 100 ms, is recorded fault code.

698 of the accelerator pedal, the signal PWM2 (pulse width modulation). Priority 2: The fault, which requires removal of the service center. STOP warning light is lit in red. Missing or invalid signal PWM2 accelerator pedal (A410). For identification of the accelerator pedal position signal PWM1 is used. Engine speed and torque limited (1800 rev / min and a 80% limit). Check the accuracy of signal PWM2 using a PC, check the wiring, contacts in the connectors. Perform measurement using a portable oscilloscope Fluke ScopeMeter 123 or similar device (frequency 200 Hz). Check the voltage at FFR unit between terminals X2 / 18 (+) and X1 / 3 (-) jumper (test block) is closed, Low signal: about 8 V., HIGH signal (accelerator pedal fully depressed): about 20 in .; Jumper (test block) is open: on the side of FFR unit approximately 25.5 V., by car about 0 V. If the fault is not found, try to recalibrate the accelerator pedal. If the voltage drop when the ignition is switched on PWM1 (A410 / pin5) and power on the PWM2 (A410 / pin6) is greater than 100 ms, is recorded fault code.

770 Separate H. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Detected a fault in the wiring SPLIT-HIGH solenoid valve (Y307). The fault is recorded in the fault memory in the case if the fault is recorded during the three measurement cycle (500ms). The valve is no longer controlled by the divider. When using a PC to perform unit testing "SPLIT-HIGH" and "SPLIT-LOW". Check the resistance between the terminals X3 / 13 (+) and X4 / 6 (-) on the side of FFR unit about 6 ohms, at the side of the car about 83.3 ohms. Check the resistance between the terminals X3 / 13 (+) and X1 / 3 (-): on the side of FFR unit approximately 4.3 ohms, on the side of the car ---. Check the voltage between the unit FFR {3/13 (+) and X4 / 6 (-): when activated solenoid valve at approximately 27.6 V. deactivated valve approximately 0 V.

771 Separate L. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Detected a fault in the wiring SPLIT-LOW solenoid valve (Y307). The fault is recorded in the fault memory in the case if the fault is recorded during the three measurement cycle (500ms). The valve is no longer controlled by the divider. When using a PC to perform unit testing "SPLIT-HIGH" and "SPLIT-LOW". Check the resistance between the terminals X4 / 7 (+) and X4 / 6 (-) on the side of FFR unit about 6 ohms, at the side of the car about 84.6 ohms. Check the resistance between the terminals X4 / 7 (+) and X1 / 3 (-): on the side of FFR unit approximately 4.3 ohms, on the side of the car ---. Check the voltage between the unit FFR {4/7 (+) and X4 / 6 (-): when activated solenoid valve at approximately 27.6 V. deactivated valve approximately 0 V.

898 Group resistors limit the maximum speed. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Incorrect signal from the group of resistors (R134). Step HGB (the maximum speed limit) remains activated. After the next power stupenRGB0 selected (activated maximum speed limit 1). When using a PC to verify the accuracy of the signal, check the wiring, contacts in the connectors, check the interface body H1996, check the group of resistors (R134). Check the resistance between the terminals X2 / 6 (+) and X1 / 3 (-) on the side of FFR unit about 6.5 ohms, a car of the approximately 0,511 ohms. Check the resistance group of resistors (R134): between terminals 5 and 7/6 of approximately 3.09 ohms between terminals 5 and 3 / 4priblizitelno 1.37 ohms between terminals 5 and 2/8 of approximately 0.51 ohms between terminals 5 and 1/9 of approximately 8.2 ohms. Check the voltage between FFR unit: X2 / 6 (+) and X1 / 3 (-) is approximately 460 mV.

1045 The final stage of locking enable transmission. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. The closure of the outlet lock on transmission (final stage) unit solenoid valve (Y307). Lock-off switch stops the transmission controlled. Check with your PC via actuators (blocking of switching transmission), wiring, contacts in the connectors. The cases ZF16S151 / ZF16S181 type gear unit check the solenoid valve (Y307). Check resistance between terminals X 4/13 (+) and X3 / 5 (-) on the side of FFR unit approximately 8.9 ohms, on the side of the car about 135 ohms. Check the resistance between the terminals X4 / 13 (+) and 1/3 X (-) on the side of the FFR block of approximately 8.3 ohms, on the side of the car ---. Check the voltage between terminals X4 / 13 (+) and X3 / 5 (-): When the solenoid is activated about 27.5 V. When the solenoid valve is deactivated about 0 V.

3010 Limiting speed and torque. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Incorrect signal from the group of resistors (R134). Stage limitation for the speed range remains activated. When you first turn activates step 0 to the engine speed range. When using a PC to verify the accuracy of the signal, check the wiring, contacts in the connectors, check the interface body H1996, check the group of resistors (R134). Check the resistance between the terminals X2 / 1 (+) and X1 / 3 (-): on the side of FFR unit about 6.5 ohms, a car of the approximately 0,511 ohms. Check the resistance group of resistors (R134): between terminals 5 and 7/6 of approximately 3.09 ohms between terminals 5 and 3 / 4priblizitelno 1.37 ohms between terminals 5 and 2/8 of approximately 0.51 ohms between terminals 5 and 1/9 of approximately 8.2 ohms. Check the voltage between FFR unit: X2 / 1 (+) and X1 / 3 (-) is approximately 460 mV.

3020 Calibration value, the accelerator pedal, PWM1. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. PWM1 signal of the accelerator pedal (A410) is not set or not set. Fault occurs when the value of idling more than 10% or less than 30% and the full load point of greater than 90% or less than 40%. This aktiviziruyuetsya limit engine speed and torque limitation. The value calculated by the accelerator pedal signal PWM2. Check the accuracy of the signal (PWM1 pedal module) using a PC, perform a calibration of the accelerator pedal. Pedal Calibration is performed using a PC. To calibrate, press the accelerator pedal all the way (mode "kick-down" must be activated), hold the pedal down for about 3 seconds, then the pedal should be released, repeat these steps 2-3 times. When installing a new accelerator pedal, always require calibration.

3021 Calibration value, the accelerator pedal, PWM2. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. PWM2 signal of the accelerator pedal (A410) is not set or not set. Malfunction occurs when idling value is less than 10% or greater than 30% and the full load point of greater than 90% or less than 40%. This activates the limitation engine speed and torque limitation. The value calculated by the accelerator pedal signal PWM1. Check the accuracy of the signal (PWM2 pedal module) using a PC, perform a calibration of the accelerator pedal. Pedal Calibration is performed using a PC. To calibrate, press the accelerator pedal all the way (mode "kick-down" must be activated), hold the pedal down for about 3 seconds, then the pedal should be released, repeat these steps 2-3 times. When installing a new accelerator pedal, always require calibration.

3197 CAN data bus: Post AS-Tronic ETC1, bayt1. Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. Invalid value signal "shift process" or the signal "driveline engaged" control unit AS-Tronic (A330). The incoming signal is identified as invalid. Check gearbox control unit fault memory AS-Tronic (A330) and to eliminate the causes of faults, check the wiring, contacts in the connectors. Test for CAN data transmission channel (T-CAN): the control unit pins AS-Tronic A12 (-) and 8 (+) of approximately 60 ohms. Check the resistance of the CAN data transmission channel (T-CAN) to the FFR block contacts X1 / 15 (-) iH1 / 14 (+) of approximately 120 ohms. If 0 ohms circuit CAN-High to CAN-Low.

3250 Inputs Comfort Shift (CS1 iCS2). Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. The input value is not accurate when both inputs Comfort Shift transmission control switch (S477) have the same level of longer than 100ms. or after the inquiry remains unfulfilled for more than 2 seconds. Comfort Shift function is blocked. When using a PC to check the accuracy of the signals "Switch Comfort Shift" and "Comfort Shift switch in the opposite position." Check resistance: request Comfort Shift 1, FFR unit between terminals X2 / 12 (+) and X1 / 3 (-) on the side of FFR unit approximately 4.6 ohms. Check resistance: request Comfort Shift 2, FFR unit between terminals X2 / 3 (+) and X1 / 3 (-) on the side of FFR unit approximately 4.6 ohms. Check the voltage: a request Comfort Shift 1, the FFR unit between terminals X2 / 12 (+) and X1 / 3 (-): 0 V switch is open, the switch is closed Ukl.15 (equal to the voltage at terminal 15 ignition with the ignition). Check the voltage: Comfort Shift 2 request FFR unit between terminals X2 / 3 (+) and X1 / 3 (-): 0 V switch is open, the switch is closed Ukl.15 (equal to the voltage at terminal 15 ignition with the ignition).

3251 PereklyuchatelFGR (cruise control) / FGB (speed limit). Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Problem FGR / FGB switch. FGR system is deactivated. Check the accuracy of using a PC signal "FGR gearshift switch (Tempomat)", check the wiring and contacts in the connectors, test switch FGR / FGB (S284). Check the resistance: the switch is opened, the contacts between the FFR block X2 / 16 (+) and X1 / 3 (-), block FFRotsoedinёn approximately 4.6 ohms. Check the voltage: the switch is opened, the contacts between the FFR X2 / 16 (+) and X1 / 3 unit (-), the unit is disconnected FFR 0 V.

3269 Precision signal from the terminal 50 ignition (engine start). Priority 3: Displayed only when the vehicle is stationary, only an indication of the problem, an indication of the actions for error is not required. On the motionless car warning light STOP yellow. The signal of the start of the engine from the ignition switch (Q101) is considered to be wrong when the ignition is switched, sends a signal to start the engine. After the inclusion of the following procedure start is possible if in the process of starting the engine, a positive signal is detected. When using a PC to verify the accuracy of the signal "klemma50", "External demand stopping the engine", "External demand starting the engine", check the wiring, contacts in the connectors, ignition (Q101), an external device to start and stop the engine. Check the resistance between the connector block contacts FFR X3 / 7 (+) and X1 / 3 (-) on the side of FFR approximately 4.6 ohms. Check the voltage between terminals X3 / 7 (+) and X1 / 3 (-): 0 V switch is open, the switch is closed from 16 to 32 V (battery voltage Ubat).

3311 control unit (calibration summaEEPROM). Priority 1: Requires stopping the engine. STOP warning light flashes red with STOP symbol. If a fault is detected by the driver, the FFR unit (A403), should be replaced. If the problem appeared after the programming process (eg key, clutch or accelerator pedal), or after replacing the FFR block, you want to re-change parametrv. If the unit FFR replaced due to this error, do the following: before connecting the PC to remove the faulty unit FFR, after connecting a PC via the menu item "On the service computer via a network connection in the enterprise," to prepare the data required for the replacement of FFR unit is not under any circumstances not read data from a faulty unit FFR, can be transmitted error code 3311 on the new unit.

3449 exhaust backpressure. Priority 2: The fault, which requires removal of the service center. STOP warning light is lit in red. The fault is registered, if within the specified time the exhaust gas back pressure exceeds a threshold value, and the motor brake is not active. EVB module (engine brake valve Y355) is deactivated. When using a PC to verify the accuracy of the signal "exhaust backpressure", check the wiring, contacts in the connectors, EVB module. Test for voltage supply 5 V. blokFFR between terminals X2 / 5 (+) and X1 / 3 (-) on the side of FFR unit of about 100 ohms, at the side of the vehicle approximately 3.7 ohms. Check the resistance: the signal of exhaust gas back pressure, FFR unit between terminals X3 / 4 (+) and X1 / 3 (-) on the side of FFR unit of about 100 ohms, vehicle side approximately 12.2 ohms. Check resistance: weight, unit FFR between terminals X3 / 5 (+) and X1 / 3 (-) on the side of FFR unit about 1.9 ohms, vehicle side approximately 54 ohms. Check resistance: engine brake unit FFR between terminals X4 / 14 (+) and X1 / 3 (-) on the side of the FFR block approximately 8.82 ohms, on the side of the vehicle approximately 22 ohms. Check voltage: 5V power supply, the unit FFR between terminals X2 / 5 (+) and 1/3 X (-) for about 5 V. Check the voltage: the signal of the exhaust gas back pressure, blokFFR between terminals X3 / 4 (+) and X1 / 3 (-) of approximately 560 mV. Check the power: weight, unit FFR between terminals X3 / 5 (+) and X1 / 3 (-) 0V. Check voltage: engine brake, block FRR between terminals X4 / 14 (+) and X1 / 3 (-) --- EVB module is active, EVB module is not activated 0 V. Check the voltage: FFR unit between terminals X4 / 1 (+) and A3 / 5 (-) solenoid is activated about 27.6, in a simple HIGH signal every 6 seconds, the solenoid valve is deactivated 0 V.

3450 exhaust backpressure. Priority 2: The fault, which requires removal of the service center. STOP warning light is lit in red. The fault is registered, if within the specified time the exhaust gas back pressure exceeds a threshold value, and the motor brake is not active. EVB module (engine brake valve Y355) is deactivated. When using a PC to verify the accuracy of the signal "exhaust backpressure", check the wiring, contacts in the connectors, EVB module. Check resistance: 5 V power unit FFR between terminals X2 / 5 (+) and X1 / 3 (-) on the side of FFR unit of about 100 ohms, at the side of the vehicle approximately 3.7 ohms. Check the resistance: the signal of exhaust gas back pressure, FFR unit between terminals X3 / 4 (+) and X1 / 3 (-) on the side of FFR unit of about 100 ohms, vehicle side approximately 12.2 ohms. Check resistance: weight, unit FFR between terminals X3 / 5 (+) and X1 / 3 (-) on the side of FFR unit about 1.9 ohms, vehicle side approximately 54 ohms. Check resistance: engine brake unit FFR between terminals X4 / 14 (+) and X1 / 3 (-) on the side of the FFR block approximately 8.82 ohms, on the side of the vehicle approximately 22 ohms. Check voltage: 5V power supply, the unit FFR between terminals X2 / 5 (+) and 1/3 X (-) for about 5 V. Check the voltage: a signal of exhaust gas back pressure, FFR unit between terminals X3 / 4 (+) and X1 / 3 (-) of approximately 560 mV. Check the power: weight, unit FFR between terminals X3 / 5 (+) and X1 / 3 (-) 0V. Check voltage: engine brake, block FRR between terminals X4 / 14 (+) and X1 / 3 (-) --- EVB module is active, EVB module is not activated 0 V. Check the voltage: FFR unit between terminals X4 / 1 (+) and A3 / 5 (-) solenoid is activated about 27.6, in a simple HIGH signal every 6 seconds, the solenoid valve is deactivated 0 V.

3451 "Comfort-Shift" is not functioning. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Function "Comfort-Shift" is locked. When using a PC to verify the accuracy of the signal "switch Comfort-Shift" and "Comfort-Shift switch in the reverse position", check the wiring, contacts in the connectors, check the gearshift selector lever (S477). Check resistance: inquiry Comfort-Shift 1, FFR- unit between terminals X2 / 12 (+) and X1 / 3 (-) on the side of FFR unit approximately 4.6 ohms. Check resistance: Comfort-Shift 2 query block FFR- between terminals X2 / 3 (+) and X1 / 3 (-) on the side of FFR unit approximately 4.6 ohms. Check voltage: inquiry Comfort-Shift 1, FFR- unit between terminals X2 / 12 (+) and X1 / 3 (-) 0V switch is open, the switch is closed Ukl15 (voltage from the ignition switch).. Check the voltage: Comfort-Shift 2 query block FFR- between terminals X2 / 3 (+) and X1 / 3 (-) 0V switch is open, the switch is closed Ukl15 (voltage from the ignition switch)..

3452 squeeze grip. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Insufficient clutch is pressed or turned ON and switch "Comfort-Shift". Wanted to keep the clutch pressed while switching procedure is completed.

3510 clutch overload. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. FFR unit registered a slip clutch. The torque reduced by 80%. After a predetermined time required for cooling the clutch is released maximum torque.

3520 Timeout LSS1. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Switch retarder / transmission (A942) is the steering column is not responding. When using a PC to verify the accuracy of the signal from the switch (A942), check wiring, contacts in the connectors, check Switch (A942), check the fuse F583. Check the resistance between the signal wires contact FFR block X2 / 8 and track 2 of the switch on the steering column: about 0.2 ohms. Check the voltage on the switch, the power supply LIN bus between terminals 3 (+) and 1 (-) Ubat (battery voltage)..

3521 Timeout MFL1. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. No response from the multifunction steering wheel MFL (A943) .If using a PC to check the accuracy of the signals from the multifunction steering wheel MFL (A943) (Set-, Set +, Off., Memo, FGR / FGB), check wiring, contacts in the connectors, check the steering wheel, check fuses F583. Check the resistance block LINmezhdu contact wire bus signal X2 / FFR 8 and steering wheel touch 3: about 0.2 ohms. Check the voltage LIN bus power supply at the terminals 1 (+) and 2 (-): Ubat (battery voltage).. With the help of a PC is possible to check only the right side of the steering wheel.

3522 Timeout INST1. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. No response from the instrument panel (A407). Check wiring, contacts in the connectors, check out the dashboard (A407). Check the resistance of the signal line bus LINmezhdu contact X2 / 8 FFR unit and terminal X1 / 15 dashboard: about 0.2 ohms.

3524 MFLneispravna right side. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. The right side of the steering wheel MFL defective. This fault is detected on the MFL unit FFR transmitted message MFL1. When using a PC to check the accuracy of the signals from the multifunction steering wheel MFL (A943) (Set-, Set +, Off., Memo, FGR / FGB), check wiring, contacts in the connectors, check the steering wheel, check fuses F583. Test for LIN bus signal wires between the contact X2 / 8 FFR unit and steering wheel touch 3: about 0.2 ohms. Check the voltage LIN bus power supply at the terminals 1 (+) and 2 (-): Ubat (battery voltage).. With the help of a PC is possible to check only the right side of the steering wheel.

3525 The left / right side of MFL is not OK. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. The left / right side of the steering wheel MFL defective. This fault is detected on the MFL unit FFR transmitted message MFL1. When using a PC to check the accuracy of the signals from the multifunction steering wheel MFL (A943) (Set-, Set +, Off., Memo, FGR / FGB), check wiring, contacts in the connectors, check the steering wheel, check fuses F583. Test for LIN bus signal wires between the contact X2 / 8 FFR unit and steering wheel touch 3: about 0.2 ohms. Check the voltage LIN bus power supply at the terminals 1 (+) and 2 (-): Ubat (battery voltage).. With the help of a PC is possible to check only the right side of the steering wheel.

3526 Fault LSS. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. Switch retarder / transmission (A942) is the steering column is defective. When using a PC to verify the accuracy of the signal from the switch (A942), check wiring, contacts in the connectors, check Switch (A942), check the fuse F583. Check the resistance between the signal wires contact FFR block X2 / 8 and track 2 of the switch on the steering column: about 0.2 ohms. Check the voltage on the switch, the power supply LIN bus between terminals 3 (+) and 1 (-) Ubat (battery voltage)..

3527 Closing the LIN bus. Priority 5: Display during stop and while driving. STOP warning light is amber and during movement and during a stop or parking. The fault is recorded when there is a closure of the LIN bus wire to ground or battery voltage. The fault is recorded if the closure is recorded over 10 seconds. Check LIN bus signal wire for closures, check the contacts in the connectors. Check the resistance of the signal line LIN bus between terminal X2 / FFR 8 block and terminal 2 of the switch on the steering column retarder / transmission: about 0.2 ohms. Check the resistance between the signal line shinyLIN contact X2 / 8 FFR unit and track 3 multifunction steering wheel MFL: about 0.2 ohms. Check the resistance of the signal line LIN bus between terminal X2 / 8 FFR unit and terminal X1 / 15 dashboard: about 0.2 V.